* {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* 内容 */
main {
    width: 1200px;
    margin: 0 auto;
}

/* 内容1 */
.neirong1 {
    width: 100%;
    height: 84px;
    border-bottom: 1px solid rgb(224, 224, 224);
}

.n1-lift {
    width: 200px;
    float: left;
    font-size: 30px;
    padding-top: 30px;
}

.n1-right {
    float: right;
    padding-top: 45px;
    padding-bottom: 5px;
    color: rgb(196, 37, 37);
    border-bottom: 2px solid rgb(195, 22, 24);
}

/* 内容2 */
.neirong2 {
    width: 1200px;
    border-bottom: 1px solid rgb(224, 224, 224);
}

/* 内容3 */
.neirong3 {
    width: 1200px;
    height: 630px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgb(224, 224, 224);
    position: relative;
}

.n3-lift {
    width: 148px;
    height: 543px;
    float: left;
    margin-top: 50px;
    border: 1px solid rgb(224, 224, 224);
}

.n3-ul {
    width: 100%;
}

.n3-ul li {
    width: 60px;
    margin: 0 auto;
    padding-top: 26px;
    text-align: center;
    font-size: 12px;
    line-height: 12px;
}

.n3-li:hover {
    color: rgb(196, 37, 37);
}

.n3-li span {
    margin-top: 10px;
    width: 0px;
    height: 2px;
    display: block;
    background-color: rgb(196, 37, 37);
    transition: width .5s linear;
}

.n3-li:hover span {
    width: 60px;
}

.n3-right {
    width: 1000px;
    height: 545px;
    float: right;
    margin-top: 50px;
}

.n3-r1 {
    width: 100%;
    padding-top: 10px;
}

.n3-r1 span {
    display: block;
}

.n3-r1-s1 {
    color: rgb(196, 37, 37);
    font-size: 20px;
}

.n3-r1-s2 {
    font-size: 12px;
    padding-top: 2px;
}

.n3-r2,
.n3-r3 {
    margin-top: 35px;
    width: 100%;
    height: 200px;
}

.n3-tu {
    width: 200px;
    height: 210px;
    float: left;
    background: url(../images/201608041750045033.jpg) no-repeat;
    background-position: center top;
    border: 1px solid rgb(224, 224, 224);
    position: relative;
}

.n3-tu-wb {
    position: absolute;
    bottom: 10px;
    left: 10px;
    width: 100%;
    font-size: 12px;
}

.n3-tu-wb span {
    display: block;
}

.n3-tu-wb-s {
    color: rgb(145, 145, 145);
}

.n3-wb {
    width: 750px;
    float: right;
}

.n3-wb span {
    display: block;
}

.n3-wb-s2 {
    width: 40px;
    height: 1px;
    margin: 15px 0;
    background-color: rgb(196, 37, 37);
}

.n3-wb-s3 {
    color: rgb(145, 145, 145);
    font-size: 12px;
    line-height: 25px;
}

.n3-tu1 {
    border: 1px solid rgb(255, 255, 255);
    background: url(../images/201608041749269564.jpg) no-repeat;
}

.n3-piao {
    position: absolute;
    top: 0px;
    right: 0px;
}

/* 内容4 */
.m-bottom {
    margin-top: 10px;
    height: 150px;
    /* background-color: aquamarine; */
}

.m-b-a {
    display: flex;
    justify-content: center;
    align-items: center;
}

.m-content .split {
    border: 1px solid rgb(242, 236, 236);
    height: 30px;
}

.m-b-a div {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 300px;
    height: 150px;
}

.m-bottom ul li {
    margin-left: 30px;
    margin-right: 20px;
    height: 150px;
    float: left;
    width: 300px;
    font-size: 17px;
    /* border: 1px solid blue; */
}

.split {
    border: 1px solid rgb(242, 236, 236);
    height: 30px;
}